1 files changed, 203 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/modern-media-controls/media/media-controller.js b/Source/WebCore/Modules/modern-media-controls/media/media-controller.js
new file mode 100644
index 000000000..710517482
--- /dev/null
+++ b/Source/WebCore/Modules/modern-media-controls/media/media-controller.js
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+const CompactModeMaxWidth = 241;
+const ReducedPaddingMaxWidth = 300;
+const AudioTightPaddingMaxWidth = 400;
+
+class MediaController
+{
+
+    constructor(shadowRoot, media, host)
+    {
+        this.shadowRoot = shadowRoot;
+        this.media = media;
+        this.host = host;
+
+        this.container = shadowRoot.appendChild(document.createElement("div"));
+        this.container.className = "media-controls-container";
+        this.container.addEventListener("click", this, true);
+
+        if (host) {
+            host.controlsDependOnPageScaleFactor = this.layoutTraits & LayoutTraits.iOS;
+            this.container.appendChild(host.textTrackContainer);
+        }
+
+        this._updateControlsIfNeeded();
+
+        shadowRoot.addEventListener("resize", this);
+
+        media.videoTracks.addEventListener("addtrack", this);
+        media.videoTracks.addEventListener("removetrack", this);
+
+        if (media.webkitSupportsPresentationMode)
+            media.addEventListener("webkitpresentationmodechanged", this);
+        else
+            media.addEventListener("webkitfullscreenchange", this);
+    }
+
+    // Public
+
+    get layoutTraits()
+    {
+        let traits = window.navigator.platform === "MacIntel" ? LayoutTraits.macOS : LayoutTraits.iOS;
+        if (this.media.webkitSupportsPresentationMode) {
+            if (this.media.webkitPresentationMode === "fullscreen")
+                return traits | LayoutTraits.Fullscreen;
+        } else if (this.media.webkitDisplayingFullscreen)
+            return traits | LayoutTraits.Fullscreen;
+
+        const controlsWidth = this._controlsWidth();
+        if (controlsWidth <= CompactModeMaxWidth)
+            return traits | LayoutTraits.Compact;
+
+        const isAudio = this.media instanceof HTMLAudioElement || this.media.videoTracks.length === 0;
+        if (isAudio && controlsWidth <= AudioTightPaddingMaxWidth)
+            return traits | LayoutTraits.TightPadding;
+
+        if (!isAudio && controlsWidth <= ReducedPaddingMaxWidth)
+            return traits | LayoutTraits.ReducedPadding;
+
+        return traits;
+    }
+
+    togglePlayback()
+    {
+        if (this.media.paused)
+            this.media.play();
+        else
+            this.media.pause();
+    }
+
+    // Protected
+
+    set pageScaleFactor(pageScaleFactor)
+    {
+        this.controls.scaleFactor = pageScaleFactor;
+        this._updateControlsSize();
+    }
+
+    set usesLTRUserInterfaceLayoutDirection(flag)
+    {
+        this.controls.usesLTRUserInterfaceLayoutDirection = flag;
+    }
+
+    macOSControlsBackgroundWasClicked()
+    {
+        // Toggle playback when clicking on the video but not on any controls on macOS.
+        if (this.media.controls)
+            this.togglePlayback();
+    }
+
+    handleEvent(event)
+    {
+        if (event instanceof TrackEvent && event.currentTarget === this.media.videoTracks)
+            this._updateControlsIfNeeded();
+        else if (event.type === "resize" && event.currentTarget === this.shadowRoot)
+            this._updateControlsIfNeeded();
+        else if (event.type === "click" && event.currentTarget === this.container)
+            this._containerWasClicked(event);
+        else if (event.currentTarget === this.media) {
+            this._updateControlsIfNeeded();
+            if (event.type === "webkitpresentationmodechanged")
+                this._returnMediaLayerToInlineIfNeeded();
+        }
+    }
+
+    // Private
+
+    _containerWasClicked(event)
+    {
+        // We need to call preventDefault() here since, in the case of Media Documents,
+        // playback may be toggled when clicking on the video.
+        event.preventDefault();
+    }
+
+    _updateControlsIfNeeded()
+    {
+        const layoutTraits = this.layoutTraits;
+        const previousControls = this.controls;
+        const ControlsClass = this._controlsClassForLayoutTraits(layoutTraits);
+        if (previousControls && previousControls.constructor === ControlsClass) {
+            this.controls.layoutTraits = layoutTraits;
+            this._updateControlsSize();
+            return;
+        }
+
+        // Before we reset the .controls property, we need to destroy the previous
+        // supporting objects so we don't leak.
+        if (this._supportingObjects) {
+            for (let supportingObject of this._supportingObjects)
+                supportingObject.destroy();
+        }
+
+        this.controls = new ControlsClass;
+        this.controls.delegate = this;
+
+        if (this.shadowRoot.host && this.shadowRoot.host.dataset.autoHideDelay)
+            this.controls.controlsBar.autoHideDelay = this.shadowRoot.host.dataset.autoHideDelay;
+
+        if (previousControls) {
+            this.controls.fadeIn();
+            this.container.replaceChild(this.controls.element, previousControls.element);
+            this.controls.usesLTRUserInterfaceLayoutDirection = previousControls.usesLTRUserInterfaceLayoutDirection;
+        } else
+            this.container.appendChild(this.controls.element);
+
+        this.controls.layoutTraits = layoutTraits;
+        this._updateControlsSize();
+
+        this._supportingObjects = [AirplaySupport, ControlsVisibilitySupport, FullscreenSupport, MuteSupport, PiPSupport, PlacardSupport, PlaybackSupport, ScrubbingSupport, SeekBackwardSupport, SeekForwardSupport, SkipBackSupport, StartSupport, StatusSupport, TimeLabelsSupport, TracksSupport, VolumeSupport, VolumeDownSupport, VolumeUpSupport].map(SupportClass => {
+            return new SupportClass(this);
+        }, this);
+    }
+
+    _updateControlsSize()
+    {
+        this.controls.width = this._controlsWidth();
+        this.controls.height = Math.round(this.media.offsetHeight * this.controls.scaleFactor);
+    }
+
+    _controlsWidth()
+    {
+        return Math.round(this.media.offsetWidth * (this.controls ? this.controls.scaleFactor : 1));
+    }
+
+    _returnMediaLayerToInlineIfNeeded()
+    {
+        if (this.host)
+            window.requestAnimationFrame(() => this.host.setPreparedToReturnVideoLayerToInline(this.media.webkitPresentationMode !== PiPMode));
+    }
+
+    _controlsClassForLayoutTraits(layoutTraits)
+    {
+        if (layoutTraits & LayoutTraits.iOS)
+            return IOSInlineMediaControls;
+        if (layoutTraits & LayoutTraits.Fullscreen)
+            return MacOSFullscreenMediaControls;
+        return MacOSInlineMediaControls;
+    }
+
+}